May weather forecastChatan, Japan
May
Weather in May
May, the last month of the spring in Chatan, is a warm month, with temperature in the range of an average high of 24.8°C (76.6°F) and an average low of 23°C (73.4°F).Temperature
In May, Chatan's weather conditions record an average high-temperature of a warm 24.8°C (76.6°F), demonstrating little divergence from the preceding month. Chatan's nocturnal May readings average at a still moderately hot 23°C (73.4°F), showing little variation from the daytime temperatures.Humidity
The average relative humidity in May is 82%.Rainfall
In Chatan, during May, the rain falls for 17.8 days and regularly aggregates up to 174mm (6.85") of precipitation. In Chatan, during the entire year, the rain falls for 215.5 days and collects up to 1300mm (51.18") of precipitation.Sea temperature
In May, the average sea temperature in Chatan is 24.6°C (76.3°F).Note: For those not fond of cold temperatures, taking a swim at 24.6°C (76.3°F) may require consideration of the sunshine, wind, and ambient temperature. While wetsuits are not mandatory, they can enhance the experience.
Daylight
The average length of the day in May in Chatan is 13h and 26min.On the first day of the month, sunrise is at 05:51 and sunset at 19:00. On the last day of May, in Chatan, sunrise is at 05:36 and sunset at 19:16 JST.
Sunshine
The average sunshine in May in Chatan, Japan, is 8.2h.UV index
The average daily maximum UV index in May in Chatan is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: In May, a regular UV index of 6 translates into these guidelines:
Guard oneself from overexposure. Defence against sun injury is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be mindful! Sand and water reflections can up the Sun's UV exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Chatan, Japan
- Average high temperature in May: 24.8°C
The warmest month (with the highest average high temperature) is August (29.5°C).
The month with the lowest average high temperature is January (18.8°C).
- Average low temperature in May: 23°C
The month with the highest average low temperature is August (28.2°C).
The coldest month (with the lowest average low temperature) is January (16.8°C).
Average pressure in May
Chatan, Japan
- Average pressure in May: 1011.2mbar
The month with the highest atmospheric pressure is January (1020.9mbar).
The month with the lowest atmospheric pressure is August (1006.6mbar).
Average wind speed in May
Chatan, Japan
- Average wind speed in May: 19.5km/h
The windiest month (with the highest average wind speed) is December (27.6km/h).
The calmest month (with the lowest average wind speed) is May (19.5km/h).
Average humidity in May
Chatan, Japan
- Average humidity in May: 82%
The month with the highest relative humidity is June (86%).
The month with the lowest relative humidity is January (72%).
Average rainfall in May
Chatan, Japan
- Average rainfall in May: 174mm
The wettest month (with the highest rainfall) is June (198mm).
The driest months (with the least rainfall) are January and February (53mm).
Average rainfall days in May
Chatan, Japan
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is October (19.7 days).
The month with the least rainy days is July (16.1 days).
Average sea temperature in May
Chatan, Japan
- Average sea temperature in May: 24.6°C
The best month for swimming (with the highest average sea temperature) is August (28.7°C).
The coldest month (with the lowest average sea temperature) is February (20.9°C).
Average daylight in May /
Average sunshine in May
Chatan, Japan
- Average daylight in May: 13h and 24min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in May: 8h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Chatan, Japan
- Average sunshine days in May: 11.2 days
The month with the most sunshine days is July (12.6 days).
The month with the least sunshine days is September (7.1 days).
Average UV index in May
Chatan, Japan
- Average UV index in May: 6
The months with the highest UV index are June, July, August and September (UV index 7).
The month with the lowest UV index is December (UV index 4).
Average cloud cover in May
Chatan, Japan
- Average cloud cover in May: 49
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in May
Chatan, Japan
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





